Medical tunneling instrument



FIG. 1 is a front view of a medical tunneling instrument showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and

FIG. 6 is a bottom view thereof.

The broken lines showing of a medical tunneling instrument are for the purpose of illustrating portions of a medical tunneling instrument and form no part of the claimed design. 

CLAIM The ornamental design for a medical tunneling instrument as shown and described. 